PID Analyzers

What PID Analyzers does

PID Analyzers, LLC, doing business as HNU and HNU Instruments, is a privately held US manufacturer of analytical sensors and instruments with roots in photoionization detection (PID) technology dating to 1974. The company was formed as a legal entity in 2003 and is headquartered in Sandwich, Massachusetts, operating with a headcount of 51–100 employees. It serves environmental monitoring, industrial hygiene, water quality, laboratory, and process control end markets with instruments that detect hazardous vapors, gases, and contaminants in air and water. The company carries no disclosed parent, no outside funding rounds, and no acquisitions, and operates as a standalone LLC.

The product portfolio spans approximately twenty analyzer models across portable, fixed continuous, ambient air, water quality, and laboratory configurations. Core technologies include photoionization detection (using proprietary 9.5 eV and 10.6 eV UV lamps manufactured in-house), non-dispersive infrared (NDIR), electrochemistry, catalytic bead, flame ionization detection (FID), thermal conductivity (TCD), capacitance, MEMS, and process gas chromatography. Notable product families include the Model 102/103/104 portable and multigas PID analyzers, the Models 201/202 continuous analyzers, the PI 201-C field analyzer, the Model 312 cloud-connected analyzer, the Model 323 high-performance fast GC, the Model 52 laboratory TOC analyzer, and the Model 20 MEMS gas flow sensor. Software assets include the proprietary PeakWorks control and analysis platform, which has been developed over more than two decades. Selected products carry CE and RoHS certifications, and the product literature references alignment with EPA Methods, OSHA Methods, and NIOSH procedures.

The commercial model is a direct, quote-based hardware sale supported by a 2022-launched corporate website with a "Request a Quote" mechanism; no distributor network or channel partners are disclosed. Secondary revenue streams include service and maintenance contracts, technical manuals, and technical papers. Cumulative unit shipments exceed 40,000 portable PIDs since 1974 and 3,000+ Model 201-C analyzers, indicating a long-lived installed base but modest annual unit volumes. Revenue is not publicly disclosed.

Name

PID Analyzers

Legal name

PID Analyzers, LLC

Website

https://hnu.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

51–100 employees

Short description

PID Analyzers (HNU) develops and manufactures photoionization-based sensors and analyzers for detecting hazardous air, water, and process contaminants, serving environmental, industrial hygiene, water quality, laboratory, and process control customers worldwide.

Ownership category

akta.pro rank

Product category

Environmental Monitoring Instruments

NAICS

Analytical Laboratory Instrument Manufacturing (334516), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513)

SIC

Laboratory Analytical Instruments (3826)

akta.pro primary industry

Process Analytical Instrumentation (Gas analyzers, spectroscopy, pH/ORP, conductivity) (IMAGAFAE)

akta.pro secondary industries

Environmental Sensors (Temperature/Humidity/Gas/Air Quality) (HDAHALAD), Online Monitoring, Sensors & Instrumentation (SCADA-integrated analyzers, probes, samplers) (EUANAJAC), Smart Sensors Retail (Motion, Contact, Leak, Smoke/CO, Air Quality) (CRAIAMAH), Industrial Sensors (Pressure, Temperature, Flow, Level, Proximity, Vibration) (IMAGAFAA), Water Quality Monitoring (Surface Water, Stormwater, Drinking Water) (EUAHACAC)

Keywords

• Photoionization detectors
• Gas chromatography analyzers
• Air quality monitoring
• Industrial hygiene instruments
• Water quality analyzers

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Hardware Sales: Sale of analyzers and sensors for air, water and process monitoring including portable PIDs, gas chromatographs, fixed continuous monitors, and water quality instruments.
2. Service and Maintenance: Clean and Calibrate service at $350.00, additional repair work at $125/hour, evaluation fee $150. Annual maintenance and service contracts available for PID Analyzers, HNU, HNU Systems, and Process Analyzers instruments.
3. Technical Manuals: Sale of comprehensive instrument manuals for $50 each. Free quickstart manuals provided for Model PI, DL, and ISPI 101.
4. Technical Papers and Documentation: Extensive library of technical papers and application notes covering portable instruments, continuous instruments, laboratory instruments, ambient air instruments, and water quality instruments.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

PID Analyzers (HNU) designs, manufactures, and sells sensors and analyzers based on proprietary photoionization detection (PID) technology and complementary sensor technologies (infrared, electrochemical, catalytic combustion, flame ionization, thermal conductivity, capacitance, and process gas chromatography) for air, water, and process monitoring applications. Its product line includes portable and process gas chromatographs, continuous and fixed VOC monitors, portable photoionization analyzers, electrochemical toxic gas analyzers, infrared CO2 analyzers, ambient air analyzers, VOC concentrators, MEMS gas flow meters, and handheld water quality meters for environmental monitoring, industrial hygiene, process control, and laboratory analysis customers worldwide.

Product overview

PID Analyzers offers a comprehensive portfolio of gas and water analysis instruments for environmental monitoring, industrial hygiene, process control, and laboratory applications. The product lineup includes portable and fixed gas chromatographs (Models 312, 323, 301-C) as the core analytical platform; a range of detector modules (PI52-02 PID, FI53-02 FID, TC54 TCD) that can be added to GC systems; continuous and fixed-point monitors (Models 112, 120, 201, 202) for continuous VOC and gas monitoring; portable photoionization analyzers (Models 90, 95, 103, 104) for workplace and field VOC detection; electrochemical sensor analyzers (Models 10, 30) for toxic gases; infrared CO2 analyzers (Models 40, 2011) for ambient air monitoring; ambient air analyzers (Model 2012) for NOx, O3, SO2; VOC concentrators (Model 2010) for ppb-level fenceline monitoring; and water quality instruments (Models 52, 2050, 2054) for pH, conductivity, TDS, and dissolved oxygen. The analyzers share common connectivity features (Bluetooth, WiFi, RS232, USB) and data management capabilities for cloud transfer and PC integration.

Differentiator

Problem solved

Functional benefit

Products and services

• Model 20 MEMS Gas Flow Meters MEMS-based thermal conductivity gas flow meter with NIST traceability, +/- 1-2% accuracy, rechargeable LiPO battery, optional datalogging with Bluetooth, and RS232 output for GC flow measurement and other gas flow applications from 0-500 cc/min.
• Model 312 Portable GC Lightweight portable gas chromatograph for industrial hygiene, environmental, process, stack monitoring, and building security applications. Features embedded Intel PC with Windows 10, PeakWorks software, multiple detectors (PID, FID, TCD, FPD, FUV), 10-inch color touch screen, and up to 8-hour battery life.
• Model 323 High Performance Fast GC Transportable portable GC for environmental, quality control, and natural gas applications. Features fast temperature programming up to 60-70 C/min, 10-inch VGA color screen, 32GB solid state drive, choice of detectors (PID, FID, FPD, FUV, TCD), and lightweight 17-pound steel enclosure.
• Model 301-C Process Gas Chromatograph Fourth-generation flexible process gas chromatograph with multiple detector options (PID, FID, TCD, FPD, FUV). Features Intel Pentium computer with Windows 10, PeakWorks chromatography software, automatic calibration, 40GB hard drive storage, and multiple enclosure options (NEMA 2 rack mount, NEMA 4 wall mount).
• Model 112 Fixed System PID Low-cost continuous VOC analyzer with NEMA 4 industrial enclosure. Offers single PID or FID sensor, optional 4-20 mA output, programmable setpoint, 0.1-4,000 ppm range (PID) or 1-20,000 ppm (FID), built-in response factor library with over 300 compounds.
• Model 120 Catalytic VOC Gas Analyzer Continuous VOC analyzer using catalytic oxidation at 900°C with dual detection ranges (0-100 ppm and 0-20,000 ppm). Features +/- 2% accuracy, OLED display, onboard data logging with optional Bluetooth, and measures all VOCs including methane and other hydrocarbons.
• Model 201 Continuous Monitor Flexible continuous photoionization detector analyzer with optional FID. Over 3,000 units sold worldwide for carbon bed breakthrough, leak detection, and stack monitoring. Features automatic calibration, 7-inch HDMI color display, WiFi, Bluetooth, and up to 6 programmable dual setpoints.
• Model 202 Infrared Analyzer Dual beam non-dispersive infrared (NDIR) monitor for CO2, CH4, CO, N2O, and total hydrocarbons. Features automatic compensation with less than 1% zero drift per month, auto calibration, and programmable setpoints for process control applications.
• Model 10 Hydrogen Analyzer Electrochemical sensor-based portable analyzer for toxic gases and oxygen measurement. Features rechargeable 3.7V LiPO battery, 2.4-inch bright OLED display, +/- 2% accuracy, datalogging up to 100,000 data points with Bluetooth transfer, and operates from 0-50°C.
• Model 30 Electrochemical Sensor Analyzer Portable toxic gas analyzer with electrochemical sensors for H2S, HCN, PH3, AsH3, ETO, NH3, CH2O, Cl2, O3, CH3SH, O2, and C2H4. Features 90% response in 30 seconds, 100,000-point optional datalogging, and integral pump for workplace monitoring.
• Model 95 Photoionization Analyzer Portable PID analyzer for total VOCs and hydrides in air and water. Features interchangeable PID lamps (9.5, 10.0, 10.6, 11.7 eV), 3.7V LiPO battery, 2.4-inch OLED display, 0-3,000 ppm range with 0.1 ppm resolution, RS232 communication, and datalogging with real-time clock.
• Model 90 Basic Photoionization Analyzer Basic portable PID analyzer with long-lifetime 10.6 eV lamp. Features 2.4-inch OLED display, LiPolymer battery, 0.1-3,000 ppm range, RS232 communication, and simplified design at competitive pricing compared to earlier Model 102.
• Model 103 Photoionization Analyzer Advanced portable PID analyzer with WiFi, Bluetooth, and RS232 connectivity. Features 3.5-inch TFT color display, interchangeable PID lamps, dual range (0-5,000 ppm and 0-30,000 ppb), 0.1 ppm and 10 ppb resolution, and datalogging with real-time clock.
• Model 104 Photoionization Analyzer Multi-channel PID analyzer with up to 6 channel capability combining PID (9.5, 10.0, 10.6, 11.7 eV) plus 20 different electrochemical, catalytic, or IR sensors. Features WiFi, Bluetooth, RS232, 3.5-inch TFT color display, optional ppb mode (0-1000 ppm and 0-30,000 ppb), and greater than 100,000-point internal memory.
• Model 40 Infrared CO2 Analyzer Dual beam infrared CO2 analyzer with RH% and temperature measurement. Features 2.4-inch OLED display, 64-bit ADC for accuracy over 0-10,000 ppm, rechargeable LiPO battery, optional datalogging with Bluetooth, and RH/T measurements for HVAC monitoring.
• Model 2010 Concentrator Total VOC analyzer for ppb-level hazardous materials measurement at fencelines and workplaces. Features integral concentrator, PID technology, 0.1-50,000 ppb range, 3.5-inch bright OLED display, 5-minute analysis cycle, 100,000 runs datalogging with Bluetooth, and cloud transfer capability.
• Model 2011 Infrared CO2 Analyzer Dual beam infrared CO2 analyzer for ambient air and workplace monitoring. Features multi-point calibration with autoranging, 3.5-inch high-res TFT color display, wall mount or 19-inch rack options, +/- 2% accuracy, 100,000 datalogging points with Bluetooth, and optional RS485 or 4-20 mA output.
• Model 2012 Ambient Air Analyzer Ambient air analyzer for NOx, O3, and SO2 measurement at ppb levels. Uses electrochemical sensors for common workplace toxics with continuous monitoring cycle, 3.5-inch bright TFT color display, programmable alarms, and 100,000 runs datalogging with cloud transfer.
• Model 52 Conductivity & TDS Meter Handheld water quality meter for conductivity, TDS, and salinity measurements. Features bright OLED display, 16-bit ADC, LiPO rechargeable battery, optional Bluetooth datalogging with RTC (100,000+ points), multiple cell constants (0.1, 1.0, 10.0), and temperature compensation.
• Model 2050 pH Meter Handheld pH meter for water quality measurement with pH 0-14 range, +/- 1000 mV resolution, automatic temperature compensation, 16-bit ADC, bright OLED display, optional Bluetooth datalogging, and LiPO rechargeable battery in compact handheld form factor.
• Model 2054 Dissolved Oxygen Analyzer Handheld dissolved oxygen meter for water quality with 0-20 ppm DO range and temperature measurement. Features bright OLED display, T probe, 16-bit ADC, rechargeable LiPO battery, and optional Bluetooth with real-time clock datalogging.
• Clean and Calibrate Service Standard instrument service offering available for PID Analyzers, HNU, HNU Systems, and Process Analyzers instruments, priced at $350.00 per unit (excluding shipping) with replacement parts billed at cost and additional repair work at $125.00/hour beyond the standard clean and calibrate. An annual $150 evaluation fee applies if a repair estimate is declined.

Quantifiable outcome

• 50-100x more sensitive than FID for benzene detection
• +5 more outcomes

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature6 records

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• RAE Systems (Honeywell): Now part of Honeywell, RAE Systems is a leading manufacturer of portable PID and multi-gas detectors used for industrial hygiene, safety and environmental response—directly comparable to PID Analyzers' portable PIDs and multi-gas analyzers.
• Industrial Scientific: Global provider of gas detection instruments, sensors and connected safety solutions for confined space and industrial hygiene monitoring; competes with PID Analyzers in portable toxic gas and VOC detection for workplace safety.
• Ion Science: UK-based specialist in PID technology and gas detection instrumentation for industrial hygiene and environmental monitoring; competes head-on with PID Analyzers in portable and fixed VOC detectors using similar photoionization principles.

Broad incumbents

• Dräger: Large German safety and medical technology company with a broad portfolio of portable and fixed gas detectors, including PID-based instruments; overlaps with PID Analyzers in industrial hygiene and process safety markets but spans much wider categories.
• MSA Safety: Established global safety equipment manufacturer offering fixed and portable gas detectors; comparable to PID Analyzers in industrial hygiene and process safety use cases, with a much broader worker-protection product portfolio.
• Shimadzu Scientific Instruments: Long-established Japanese analytical instrument maker with GC and environmental product lines that compete with PID Analyzers in laboratory and ambient air VOC monitoring.
• Thermo Fisher Scientific: Global analytical instruments giant whose environmental, process and laboratory GC platforms (e.g., Trace, Interspec) compete with PID Analyzers' portable and process gas chromatographs (Models 312, 323, 301-C) at the high end.
• Agilent Technologies: Major analytical instrumentation vendor with industry-leading GC, GC/MS and laboratory systems; competes with PID Analyzers' Model 323 and 312 portable/transportable GCs and detector modules in environmental and laboratory applications.

Emerging players

• TSI Incorporated: US-based manufacturer of precision measurement instruments for particle counters, flow meters and gas analyzers; adjacent to PID Analyzers in flow measurement (Model 20 MEMS) and indoor/ambient air quality applications.
• INFICON: Specialist in gas analysis, leak detection and vacuum instrumentation, including micro-GC products that overlap with PID Analyzers' portable and process GC offerings in environmental and process monitoring niches.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/pidgirl
• YouTubeyoutube.com/user/pidgirl/videos
• Facebookfacebook.com/pidanalyzers
• LinkedInlinkedin.com/company/hnu-pid-analyzers

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about PID Analyzers